DE156487C - - Google Patents
Info
- Publication number
- DE156487C DE156487C DENDAT156487D DE156487DA DE156487C DE 156487 C DE156487 C DE 156487C DE NDAT156487 D DENDAT156487 D DE NDAT156487D DE 156487D A DE156487D A DE 156487DA DE 156487 C DE156487 C DE 156487C
- Authority
- DE
- Germany
- Prior art keywords
- ring
- face
- chin
- helmet
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002184 metal Substances 0.000 claims 1
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 210000003625 skull Anatomy 0.000 claims 1
- 239000000779 smoke Substances 0.000 claims 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/04—Gas helmets
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Helmets And Other Head Coverings (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE156487C true DE156487C (enrdf_load_html_response) |
Family
ID=422853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT156487D Active DE156487C (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE156487C (enrdf_load_html_response) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2776845A (en) * | 1952-02-04 | 1957-01-08 | Darwin Products Inc | Bicycle balancer |
-
0
- DE DENDAT156487D patent/DE156487C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2776845A (en) * | 1952-02-04 | 1957-01-08 | Darwin Products Inc | Bicycle balancer |
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